had been operating until

USAGE SUMMARY

The phrase "had been operating until" is correct and usable in written English.
It is used to indicate that something was in operation up to a certain point in the past. For example: "The restaurant had been operating until the pandemic hit, at which point it had to close down."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

2 human-written examples

The Promotion of Access to Information act overturned the commercial model that the CDSM had been operating until that time.

The Guardian - Tech

American officials, meanwhile, remained fixated on the temperature readings inside that reactor and two others that had been operating until the earthquake shut them down, as well as at the plant's spent fuel pools, looking for any signs that their high levels of heat were going down.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

58 human-written examples

Each electromagnet was operated individually; only the lower electromagnet had been operated until the bulk reached a certain level and then the upper electromagnet was started to operate with a constant current of the lower electromagnet.

Physica C: Superconductivity

"The way New Jersey has been operating until now is fairly standardless," said Stephen A. Latimer, who represents another sex offender.

The New York Times

The fact that the increased levels of LD were also observed for markers located > 10 cM apart suggests that the factors are still operating or have been operating until recently (see [ 48]).

BMC Evolutionary Biology

A member of her support network said that her legal team — which also includes Nancy Hollander, who worked on her appeal — intended to put out an announcement when she was safely resettled on Wednesday, and that it was possible Ms. Manning would choose to say something on her Twitter account, @xychelsea, which has been operated until now by a friend in telephone contact with her.

The New York Times

The BBC last night reported that Abdelati Obeidi, a former Libyan foreign minister under Muammar Gaddafi, as saying that MI6 had been operating in Tripoli until the start of the revolution in February.

The Guardian

A Nigerian firm had been operating them for multinationals, until millions of dollars disappeared in a deal gone bad, and the state seized the assets.

The New Yorker

Her company had been operating in stealth up until today's acquisition.

TechCrunch

But the problem was "resolved amicably" by the end of 2006, the spokesman said, and since then, Coca-Cola had been operating normally in Libya until the onset of the current unrest.

Huffington Post

Last year, it was widely reported that President Trump forced then-chief of staff John Kelly to grant a clearance to his son-in-law Mr Kushner, who until then had been operating under an interim clearance.

BBC

Expert writing Tips

Best practice

When using "had been operating until", ensure the context clearly establishes the past perfect continuous tense, indicating an action that continued up to a specific point in the past. This tense is useful for describing changes or disruptions that occurred.

Common error

Avoid using "had been operating until" when a simpler past tense like "operated until" would suffice. Overusing the past perfect continuous can make your writing sound unnecessarily complex. Reserve it for situations where emphasizing the duration of the action is crucial.

Linguistic Context

The phrase "had been operating until" functions as a verb phrase indicating a past continuous action that ceased at a specific point in the past. It establishes both the continuous nature of the action and its termination.

Expression frequency: Rare

Frequent in

News & Media

67%

Science

25%

Wiki

8%

Less common in

Academia

0%

Formal & Business

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "had been operating until" is a grammatically correct verb phrase used to describe a continuous action that ceased at a specific point in the past. According to Ludwig AI, it's suitable for neutral registers, commonly found in news and scientific contexts. Although relatively rare, its purpose is to provide context about a previously ongoing activity, often setting the stage for explaining changes or new developments. Remember to use it when emphasizing the duration of the action is important and avoid overusing it in place of simpler past tenses.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

was functioning until

Replaces "operating" with "functioning", emphasizing the activity of something working.

had been running until

Uses "running" instead of "operating", often used for systems or processes.

was in service until

Replaces the action with the state of being in service, suitable for equipment or services.

had been working until

Substitutes "operating" with "working", generally applicable to various subjects.

had been active until

Emphasizes the state of being active rather than the act of operating.

was in effect until

Focuses on the validity or effectiveness of a rule or agreement.

had been effective until

Highlights the effectiveness of an operation up to a certain time.

had remained open until

Suitable for businesses or establishments that ceased operations at a specific time.

had persisted until

Emphasizes the continuation or endurance of something up to a point.

continued to operate until

Uses a different verb structure to convey the same meaning of continuous operation.

FAQs

How can I use "had been operating until" in a sentence?

You can use "had been operating until" to describe a situation that was ongoing up to a certain point in the past. For example, "The factory "had been operating until" the new regulations were introduced".

What's the difference between "had been operating until" and "operated until"?

"Had been operating until" emphasizes the duration of the operation up to a certain point, while "operated until" simply states the endpoint. The first highlights a continuous activity, while the second indicates the end of the activity without emphasis on how long it lasted. For example, you might say "The shop "had been operating until" the fire", to emphasise it ran for a long period of time before that end-point event or "The shop operated until the fire" to simply state the end point.

What are some alternatives to "had been operating until"?

Some alternatives include "was functioning until", "had been running until", or "was in service until", depending on the specific context.

Is it correct to say "has been operating until" instead of "had been operating until"?

No, "has been operating until" is grammatically incorrect in most contexts. "Had been operating until" indicates a past action that continued until another point in the past. The present perfect continuous "has been operating" is used for actions continuing to the present or very recent past, and generally does not fit with an explicit "until" clause related to the past.